Classifications

• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23K—FODDER
  • A23K50/00—Feeding-stuffs specially adapted for particular animals
  • A23K50/30—Feeding-stuffs specially adapted for particular animals for swines
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23K—FODDER
  • A23K20/00—Accessory food factors for animal feeding-stuffs
  • A23K20/10—Organic substances
  • A23K20/195—Antibiotics

Definitions

• This invention is concerned generally with improved animal feedscontaining a. novel growth-promoting supplement. More particularly, it relates to animaLfeeds supplemented by a combination of an anti-bacterial antibiotic with a member of the class consisting of nystatin; and amphotericin, for growth promotion, and,with the method of accelerating the growth ofjanimals by the 1 ad:-
• an object of this invention to provide an animal feed supplement Which-essentially-comprisesone or more of the antibacterialantibiotics.
• nystatin is the subjectofj an article by Dutcher et al., entitled The Preparation and Properties of Crystalline Fungicin (Nystatin), in,
• bacterial antibiotic have been utilized quite effectivelyinhuman therapy. These combinations have been ad minstered in a variety of dosage forms (eg. tablets and capsules), the nystatin being present in a concentration, of the order of 250,000 units per dosage unit.
• feed supplement'in the animaldiet is obtained whether the supplement'isadded to .
• a nutritionally-adequate feedstuif as, for example, an animal feed containing all known nutrients and a source of animal protein factor
• whether-the'supplement is added to a nutritionally-deficient feedstuif is obtained whether the supplement'isadded to .
• the antibiotics can be administered to the animal in a number of ways, it is presently preferred to prepare a supplementary feed foradministration to the, animal either. separately or in combinationwith a feed stuff containing the usual nutrients and vitamins.
• the antibiotics can be. added to the supplementary feed in any oneof a-number of forms, for example, in the form of their salts, or in the form of a concentrate or adsorbate prepared from the fermentation broths.
• the amount of antibiotics added to the animal diet maybe varied while still achieving the beneficial, results. of-this invention.
• certain other ingredients may be added which impart nutritional properties, serve as anti-caking agents or merely serve as fillers to facilitate the administration of the feed supplement to the animals or the mixing of the feed supplement with the normal diet.
• Anti-caking agents which may be utilized include synthetic calcium silicate or calcium stearate compounds. Oyster shell or limestone may be used as a filler or carrier in addition to serving as a calcium supplement in the various feed supplements.
• the feed supplement may be fed directly to the animals or, it may be administered in combination with the feedstuif containing the usual nutrients and vitamins.
• the feed supplement When administering the supplement in combination with the feedstuif, 1 to 10. pounds of the feed supplement can be addedperton of the feedstuff, depending upon the animal species being fed.
• broad spectrum antibacterial antibiotic includes a combination of two or more limited-spectrum antibiotics which together have the desired broad spectrum.
• EXAMPLE III Replace the soybean meal by-product vegetable protein supplement of Example II with 235.23 gm. of this supplement plus 22.68 gm. iaicium stearate.
• EXAMPLE IV Replace the soybean meal by-product vegetable protein supplement of Example II with 257.91 gm. oyster shell.
• EXAMPLE V Replace the soybean meal by-product vegetable protein supplement of Example II with 235.23 gm. oyster shell plus 22.68 gm. calcium silicate (Micro-Cel, Johns-Manville Co., New York).
• Feedstufi's supplemented with the antibiotic combinations of this invention are particularly suitable for the commercial raising of poultry. This is of economic importance to the poultry raiser, since it enables him to increase the capacity of his equipment.
• the use of such supplemented diets accelerate the rate at which poultry, such as chickens, turkeys and ducks are brought to marketable weight, as indicated by the following experiment.
• bacitracin methylene disalicylate 160 gm. bacitracin per pound equivalent in activity to 70 gm. of bacitracin per ton of diet.
• An animal feedstuflf for accelerating the growth of animals comprising essentially a solid feedstufli, nutritionally adequate per se, having incorporated therein a broad-spectrum antibacterial antibiotic, and a member of the class consisting of nystatin and amphotericin, the former being present in an amount between about 4 and 400 grams per ton of said feedstufi and the latter being present in an amount between about 3 and 6000 million units per ton of said feedstufli.
• An animal feedstuff for accelerating the growth of animals comprising essentially a solid feedstufi, nutritionally adequate per se, having dispersed therein a broadspectrum antibacterial antibiotic, and a member of the class consisting of nystatin and amphotericin, the former being present in an amount between about 4 and 400 grams per ton of said feedstufi and the latter being present in an amount between about 3 and 6000 million units per ton of said feedstufi.
• broad-spectrum antibacterial antibiotic and nystatin the former being present in an amount between about 4 and 400 grams per ton of said feedstufi and the latter being present in an amount of the order of 30 million units per ton of said feedstuif.
• An animal feedstulf for accelerating the growth of animals comprising essentially a solid feedstuff, nutritionally adequate per se, having dispersed therein chlortetracycline and nystatin, the chlortetracycline being present in an amount between about 4 and 400 grams per ton of said feedst'uff and the nystatin being present in an amount between about 3 and 6000 million units per ton of said feedstufi.

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• Life Sciences & Earth Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Polymers & Plastics (AREA)
• Animal Husbandry (AREA)
• Zoology (AREA)
• Engineering & Computer Science (AREA)
• Food Science & Technology (AREA)
• Birds (AREA)
• Fodder In General (AREA)

Priority Applications (7)

Applications Claiming Priority (1)

Publications (1)

Family

ID=24701379

Family Applications (1)

Country Status (7)

Cited By (8)

Families Citing this family (2)

Family Cites Families (1)

• 0
  • IT IT596322D patent/IT596322A/it unknown
  • CA CA617779A patent/CA617779A/en not_active Expired
  • BE BE569460D patent/BE569460A/xx unknown
  • NL NL229095D patent/NL229095A/xx unknown
• 1957
  • 1957-07-22 US US673116A patent/US2903356A/en not_active Expired - Lifetime
• 1958
  • 1958-06-20 GB GB19869/58A patent/GB887301A/en not_active Expired
  • 1958-07-21 DE DEO6273A patent/DE1148852B/de active Pending

Non-Patent Citations (1)

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